/**
* Invoke the Graph API.
*
* @param String $path the path (required)
* @param String $method the http method (default 'GET')
* @param Array $params the query/post data
* @return the decoded response object
* @throws JFBCFacebookApiException
*/
protected function _graph($path, $method = 'GET', $params = array())
{
if (is_array($method) && empty($params)) {
$params = $method;
$method = 'GET';
}
$params['method'] = $method;
// method override as we always do a POST
$result = json_decode($this->_oauthRequest($this->getUrl('graph', $path), $params), true);
// results are returned, errors are thrown
if (is_array($result) && isset($result['error'])) {
$e = new JFBCFacebookApiException($result);
switch ($e->getType()) {
// OAuth 2.0 Draft 00 style
case 'OAuthException':
// OAuth 2.0 Draft 10 style
// OAuth 2.0 Draft 10 style
case 'invalid_token':
$this->setSession(null);
}
throw $e;
}
return $result;
}
/**
* Analyzes the supplied result to see if it was thrown
* because the access token is no longer valid. If that is
* the case, then we destroy the session.
*
* @param array $result A record storing the error message returned
* by a failed API call.
*/
protected function throwAPIException($result)
{
$e = new JFBCFacebookApiException($result);
switch ($e->getType()) {
// OAuth 2.0 Draft 00 style
case 'OAuthException':
// OAuth 2.0 Draft 10 style
// OAuth 2.0 Draft 10 style
case 'invalid_token':
// REST server errors are just Exceptions
// REST server errors are just Exceptions
case 'Exception':
$message = $e->getMessage();
if (strpos($message, 'Error validating access token') !== false || strpos($message, 'Invalid OAuth access token') !== false || strpos($message, 'An active access token must be used') !== false) {
$this->destroySession();
}
break;
}
throw $e;
}